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| Web URL(s): | http://newss.org/proceedings/proceedings_2009.pdf#page=59
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Lewis, D. F.;
McElroy, J. S.;
Sorochan, J. C.;
Brosnan, J. T.;
Breeden, G. K. |
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| Author Affiliation: | Lewis, Sorochan, Brosnan and Breeden: University of Tennessee, Knoxville; McElroy: Auburn University, Auburn; |
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| Title: | Efficacy of aryloxyphenoxypropionate herbicides for bermudagrass control in zoysiagrass fairways |
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| Section: | Graduate student contest
Other records with the "Graduate student contest" Section
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| Meeting Info.: | Baltimore, Maryland: January 6-8, 2009 |
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| Source: | Proceedings of the Sixty-Third Annual Meeting of the Northeastern Weed Science Society. Vol. 63, 2009, p. 44. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Aryloxyphenoxypropionic herbicides; Bermudagrass control; Cyhalofop-butyl; Cynodon dactylon; Cynodon dactylon x Cynodon transvaalensis; Cynodon transvaalensis; Fenoxaprop-ethyl; Herbicide evaluation; Phytotoxicity; Quizalofop; Triclopyr; Zoysia japonica
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| Cultivar Names: | Zenith; Tifway |
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| Abstract/Contents: | "Aryloxyphenoxypropionate (AOPP) herbicides are used to control bermudagrass (Cynodon dactylon) contamination in various turfgrass settings. However, applying AOPP herbicides alone can cause phytotoxic injury to zoysiagrass (Zoysia spp.). While research has shown that applications of these materials can be safened when tank-mixed with triclopyr, there is no data illustrating the extent of bermudagrass control and zoysiagrass tolerance when these two herbicides are combined. Research was conducted to determine the efficacy of multiple AOPP herbicides alone and tank-mixed with triclopyr for bermudagrass control in zoysiagrass fairways. Treatments included: triclopyr (1.12 kg ai/ha); fluazifop (0.11 kg ai/ha); fluazifop plus triclopyr (0.11 kg ai/ha + 1.12 kg ai/ha); fenoxaprop (0.14 kg ai/ha); fenoxaprop plus triclopyr (0.14 kg ai/ha + 1.12 kg ai/ha); cyhalofop (0.32 kg ai/ha); cyhalofop plus triclopyr (0.32 kg ai/ha + 1.12 kg ai/ha); quizalofop (0.09 kg ai/ha); and quizalofop plus triclopyr (0.09 kg ai/ha + 1.12 kg ai/ha). Each treatment was applied three times on 28 day intervals. A randomized complete block design with four replications was employed to both 'Tifway' bermudagrass (Cynodon dactylon x transvaalaensis) and 'Zenith' zoysiagrass (Zoysia japonica) fairways, with experimental units measuring 2.25m2. Herbicides were applied with a CO2 pressurized sprayer calibrated at 280 L/ha. Bermudagrass control was visually rated every two weeks on a 0-100% scale (0%=no visible turfgrass injury; 100%=complete turfgrass death), with >70% injury considered acceptable control. Zoysiagrass injury was also rated visually using the same 0-100% scale, with <15% injury considered acceptable tolerance. In addition, percent turfgrass cover was evaluated every two weeks using digital image analysis (DIA). In 'Tifway' bermudagrass, all AOPP herbicides improved control with the addition of triclopyr. Fluazifop, fenoxaprop, cyhalofop, and quizalofop did not provide acceptable bermudagrass control (<70%) when applied alone; however, when applied in combination with triclopyr, fluazifop, fenoxaprop, and quizalofop had acceptable levels of bermudagrass control (>70%). Triclopyr alone caused notable control (47.5%). In 'Zenith' zoysiagrass, all AOPP herbicides were safened with the addition of triclopyr. When applied alone, fluazifop, fenoxaprop, and quizalofop caused unacceptable zoysiagrass injury (>15%). When applied in combination with triclopyr, injury was less than <6% for each material tested. These data suggest that AOPP herbicides tank-mixed with triclopyr can be used to control bermudagrass contamination in 'Zenith' zoysiagrass fairways." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lewis, D. F., J. S. McElroy, J. C. Sorochan, J. T. Brosnan, and G. K. Breeden. 2009. Efficacy of aryloxyphenoxypropionate herbicides for bermudagrass control in zoysiagrass fairways. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 63:p. 44. |
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| Web URL(s):
http://newss.org/proceedings/proceedings_2009.pdf#page=59
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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